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H-Frame Quad Copter

by yimmy, published

H-Frame Quad Copter by yimmy Apr 6, 2013

Description

I got sick of having the landing gear / motor / props showing up in my pictures. So I decided to make the upgrade to a h-frame based design.

This design uses Home Depot towel bar. The towel bar is 15.5mm square. This frame is designed for two 18in bars and one 30 inch bar. You only need to cut the 30in bar in half. It is used for the center bars. The 18in bars are used for the motor mounts. The top plates get secured to the bottom plates with a 3mm or 4mm bolt. The nut goes on the bottom.

Recent Comments

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I'm going to have to revisit this...When I had made this the first time around my AUP was close to 2Kg. Flight times were terrible and a flat pancake type crash almost killed my battery. I've since switched to a TBS clone that I made on a laser cutter. This protects my battery inside the case.
Had my first really hard landing, actually a prop started coming off at about 340m AGL. So I cam down REALLY quick.

The prop & spinner finally came off about a 1m AGL. I was expecting to climb that high, just got excited by how well it was flying, just kept going. I forgot to LockTite the prop spinners.

No damage what so ever, even found the prop and spinner, which was within 10cm of the H-Quad. Battery was a 3s 5000mah... weight about 450g / ~16oz
AUW is 1.66 kg, with 3S 5200... I am also using 35xx motors

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License

H-Frame Quad Copter by yimmy is licensed under the Creative Commons - Attribution license.

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I'm going to have to revisit this...When I had made this the first time around my AUP was close to 2Kg. Flight times were terrible and a flat pancake type crash almost killed my battery. I've since switched to a TBS clone that I made on a laser cutter. This protects my battery inside the case.
Hey Yimmy, I spent a few moments yesterday teaching seeing if I could remix center plate designs somewhat... take a look let me know. It's now 160mm long, same 70mm width, and the battery strap attachments come from the top platform thingiverse.com/thing:190912
I like it! I could probably only print that on my printer if I printed it at a 45 degree angle on the HBP.
I'm curious to find out how the battery strap locations hold up. If those break you have to rip apart your quad to replace it.

I've started adding a bunch of FPV gear to my quad so I switched things up to lighten the frame. I'm now running my own version of a TBS clone using Delrin for the plates that I had laser cut. It's been good as a few times I've dropped flat out of the sky from 15 feet up without any issues. With the TBS clone frame everything is safely packaged inside.
Had my first really hard landing, actually a prop started coming off at about 340m AGL. So I cam down REALLY quick.

The prop & spinner finally came off about a 1m AGL. I was expecting to climb that high, just got excited by how well it was flying, just kept going. I forgot to LockTite the prop spinners.

No damage what so ever, even found the prop and spinner, which was within 10cm of the H-Quad. Battery was a 3s 5000mah... weight about 450g / ~16oz
wow, those motor mounts are slick. Nice work. Any ideas on the AUW of your copter? I had to start shedding weight when adding all my FPV gear.
AUW is 1.66 kg, with 3S 5200... I am also using 35xx motors
Loved the design, I remixed some motor mounts and open top legs to go with your H-Frame quad for the 15.45mm Home Depot Square Towel Rack stock. thingiverse.com/thing:190912
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